Paper-box machine



(No Model.)

B. E. 13301133;- PAPE'R BOX MACHINE.

; No. 339,843. Hal Pat ent ed Apr. 13, 1836.

are at right angles with the inner faces of the UNITED STATES PATENT OFFICE.

BERNARD E. BECKER, OF BOSTON, MASSACHUSETTS.

PAPER-BOX MACHINE.

SPECIFICATION forming part of Letters Patent No. 339,843, dated April 13, 1886.

Application filed June 29, 1885. Serial No. 170,914. (No model.)

To all whom; it may concern.-

Be it known that I, BERNARD E. BECKER, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Paper-Box Machines, of which the following is a specification.

My invention relates to an improvement in a paper-box machine for which a patent was granted to me on April 14, 1885, No. 315,461; and the object of my present improvement is to obviate an objection found to exist in the said patent, and to render the machine more efficient for a complete accomplishment of the work for which it is designed.

In the patent above referred to the folderlips are made smooth on their under'sides,and

metal folders or creasers.

Now, my present invention consists in corrugating or serrating the under sides of the folder-lips and making them to be at a less angle than a right one, and making the upper edges of the former to bevel to correspond with said folder-lips.

The invention further consistsin making a longitudinal groove or recess at the angle of the inner face of the folders with the folderlips, for the purpose of stiffening the edges of the paper boxes.

Referring to the accompanying drawings, Figure 1 is a vertical'section of the upper portion of the machine embodying my improvement. Fig. 2 is a top View of the same, and Fig. 3 is a view of the under side ofthe folder; lip.

A A represent the folders, of which there are four, and. are secured or bolted to the levers B B, which latter are pivoted atb b to the portion D D of the machine, and are operated as describedin the above-named patent. The faces of the folder-lips O O are made to be .cured to the pasteboard piece.

at less than a right angle with the faces of the folders A A, and are corrugated or serrated, as shown in Fig. 3. The upper edges of the formers E E are beveled to correspond with the angular faces of the folder-lips G 0'. When the faces of the lips and of the folders are at right angles and the upper edges of the formers are level, the tendency is to allow the turned-over edges of the paper boxes to spring open somewhat, while by mypresent improvement the tendency to spring open will be avoided, and the corrugated faces of the folderlips will cause the flaps to be more firmly se- The upper edges of the formers E E may be corrugated, instead of the under sides of the lips, if desired. Atlthe angle of the folder and folderlip I make a longitudinal groove or recess, a, which causes a rib or stiffened edge to be formed at the corners of the pasteboard box, by means of which it is rendered much stronger.

\Vhat I claim as my invention is v 1. In a paper-box machine, the folder-lips 0, made at an angle less than a right angle with the face of the folder A, in combination with the beveled formers E, substantially as and for the purpose set forth.

2. The lips 0, made with corrugated or serrated faces, as shown and described.

3. The serrated folder-lip 0, provided with the longitudinal groove a, in combination with the folder A, said groove being at the angle of 7 the folder and folder-lip, as and for the purpose set -forth.

In testimony whereof Ihave signed my name to this specification in the presence of two subscribing witnesses. N

. BERNARD E. BECKER.

\Vitnesses:

-J. H. ADAMs,

E. PLANTA. 

